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API 5CT L80-9Cr/L80- 13Cr Corrosion Resistant Alloy Casing and Tubing

  • API 5CT L80-9Cr/L80- 13Cr Corrosion Resistant Alloy Casing and Tubing
  • API 5CT L80-9Cr/L80- 13Cr Corrosion Resistant Alloy Casing and Tubing
  • API 5CT L80-9Cr/L80- 13Cr Corrosion Resistant Alloy Casing and Tubing
  • API 5CT L80-9Cr/L80- 13Cr Corrosion Resistant Alloy Casing and Tubing
  • API 5CT L80-9Cr/L80- 13Cr Corrosion Resistant Alloy Casing and Tubing
Model No.︰-
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Unit Price︰-
Minimum Order︰50 MT
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Product Description

Corrosion Resistant Alloys

 MECHANICAL PROPERTIES & Chemical Composition

Grade

Min.
Yield
Strength

Max.
Yield
Strength [Ksi]

Min.
Tensile
Strength [Ksi]

Max.
Hardness
Value [Hrc]

Chemical
Comp.

 

 

 

 

 

 

 

 

C.Max

Cr.

Ni

Mo

80Cr13

80

95

95

23

0.22

13

 

 

85Cr13

85

100

105

24

0.22

13

 

 

95Cr13

95

110

110

27

0.22

13

 

 

95Cr13M

95

110

105

28

0.05

13

4

1

110Cr13M

110

130

115

31

0.05

13

4

1

95CR13S

95

110

105

29

0.03

13

5

2

110 Cr13S

110

130

115

31

0.03

13

5

2

Elongation according to API Formula

 

 

 

 

 

Standard Technical Agreement

Normal13Cr

L80-13Cr

Super 13Cr 110-13Cr, 110U-13Cr, 110S-13Cr

Thickness

4.24 mm - 22.22 mm

Outer Diameter

2 3/8 inch - 5 1/2 inch

Place of Origin

China

Application

Deep well environment containing CO2

Test Method

High temperature high pressure

CO2 autoclave dynamic corrosion test

Packing

In bundles as per customer's need

Super 13Cr series suit for the exploitation environment where higher well bottom temperature and more CO2 is destroying the normal tubing and casings.


The mechanical data of super 13Cr series is as below

 

Grade

YS

TS

Hardness

AV

Min(MPa)

Max (MPa)

(MPa)

Max(HRC)

L-10-0 (J)

13Cr-110

758

965

862

34

30

13Cr-110U

758

965

862

34

60

13Cr-110S

758

965

862

32

80

 

Choice Advice

L80-13Cr
 
Any CO2 pressure, bottom hole temperature below 150 Centigrade.
 
13Cr-110
 
Any CO2 pressure, bottom hole temperature below 170 Centigrade.
 
13Cr-110U
 
Any CO2 pressure, bottom hole temperature below 180 Centigrade.
 
13Cr-110S
 

Any CO2 pressure, traces of H2S (below 0.01MPa).

 

 

13CrMo4-5 Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al(min)

N

13CrMo4-5

0.08-0.18

0.35

0.40-1.00

0.025

0.010

 

0.012

Cr

Cu

Mo

Nb

Ni

Ti

V

0.70-1.15

0.30

0.40-0.60

 

0.30

 

 

Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

Grade

 

13CrMo4-5 Mechanical Property

Thickness

Yield

Tensilmie

Elongation

Impact Energy(KV J) min

13CrMo4-5

mm

Min Mpa

Mpa

Min %

-20°

+20°

≤ 16

300

450-600

19

f

f

31

16> to ≤60

290

450-600

19

f

f

31

60> to ≤100

270

440-590

19

f

f

27

100> to ≤150

255

430-580

19

f

f

27

150> to ≤250

240

420-570

19

f

f

27

 API 5CT latest edition at time of manufacture (PSL-1, PSL-2, PSL, 3)
API-5CRA  Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock
API-5B  Threading, Gaging and Thread Inspection of Casing, Tubing and Line Pipe Threads

ISO 11960:2004, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells
ISO 13680-2000 Petroleum and natural gas industries-Corrosion-resistant alloy seamless tubes for use as casing,tubing and coupling stock-Technical delivery conditions
DEP 39.01.20.10-Gen L80 13%Cr casing and tubing (amendments/supplements to ISO/DIS 11960.2)
DEP 39.01.20.30-Gen Corrosion-resistant alloy seamless tubes for use as casing, tubing and coupling stock - technical delivery conditions (endorsement of ISO 13680)
DEP 39.01.20.31-Gen Care and use of casing and tubing (endorsement of ISO 10405)
GOST 632-80 Specification of Casing Pipe and Couplings form THEM
PDVSA EM-18-00-05 Requirements for Casing and Tubing

API 5CT 13Cr Series:
L80-13Cr,
C95-SP13Cr1
C95-SP13Cr2
P110-SP13Cr1
P110-SP13Cr2

Connections:

•STC (short round thread casing)
•LTC (long round thread casing)
•BTC (buttress thread casing)
•XL (extreme-line casing)
•NUE (non-upset tubing)
•EUE (external upset tubing)
•IJ (integral joint tubing)
•Premium Connections
And almost any premium & gas tight connection

Length:
Range 1, Range 2 & Range 3:

Applicable Tests:
See our Standard Inspection Scope

Protection:

External bare and uncoated or externally coated with black/ transparent anti rust Mill varnish
Plastic or Metal Pin and Box Protectors.
Internal plastic coating or sleeves.

Mill Test Certificates:
Issued in accordance with API Specification 5CT Eighth Edition
Additional Third Party Inspection can also be performed on request.

 

Standard Met︰We provide 13% Chromium grades and Corrosion Resistant Alloys (CRA) for oil and gas operations in highly corrosive environments where carbon pipe cannot be used.

Steel grades for severe corrosive environments

In most conditions when the partial pressure of CO2 is above 30psi, carbon steels present high corrosion rates. Steel grades alloyed with high contents of Chromium (Cr), Molybdenum (Mo) and Nickel (Ni) are able to effectively resist corrosion.

We manufacture 13% Chromium tubular products in our mills. We supply Corrosion Resistant Alloys through our worldwide alliance.

The development of ultra deep gas wells and enhanced recovery of oil and gas implies more aggressive environment, with higher downhole temperatures and corrosive gases.

13% Chromium and Super 13% Chromium Grades

Our group of 13%Cr alloys are martensitic stainless steels suitable for applications involving CO2 rich environments. 13CrS can be used in mild sour conditions. 13CrM and 13CrS have better performance with regards to corrosion resistance and excellent toughness.

13Cr-L80 seamless tubes are used for oil well serving in resistant corrosive environment, which requires excellent quality of resistant corrosion and strength, also requires high precision of bend and size.

CO2 -corrosion is one of the four main corrosion forms in oil-gas field and has become a very outstanding issue during the development of petroleum industries. Most of largest oil fields, rich in CO2 content, such as Daqing, Tarim, Changqing etc. now has been exposed to serious CO2 corrosion threat. The low alloy steel pipe we often used in the past now has faced serious corrosion condition, thus making us have to use corrosion resister. In the short run, applying corrosion resister is easy to operate and low cost, but it will lead to environmental pollution in the long run. Under this circumstance, we designed and developed the L80-13Cr anti-corrosion casing & tubing and got a very good effect.

The documents were complete and complied with the requirements;
This kind of casing is designed for anti-corrosion of CO2 and has the excellent corrosion resistance performance.

The performance of this products has achieved the same level of the foreign products, but better than the performance of the domestic products;

This product is non-API products, the produce and inspection standard of which exceeds the API requirements. These products use the 13 Cr steel, the chemical composition and the manufacturing process of which are reliable.

This product has Independent intellectual property rights and will get the significant economic and social benefits.

The anti-corrosion simulation experiment has been done in Xi’an OCTG Research Center of CNPC, the result is as follows:

1.The chemical composition,grain size,inclusion,hardness and mechanical property comply with the relevant standard;

2. By evaluating the electrochemical corrosion of the submission specimen as per ASTM G3 standard, we found that the surface of the specimen is capable of passivating and healing certain passive film.

3.Under the circumstance of simulated oil-field corrosion medium(1MPa CO2,90°C), we made the evaluation test of the submission specimen and found it has good corrosion- resistance ; The average corrosion rate is 0.054mm and 0.156mm per year respectively under dynamic and static state; the surface basically render uniform corrosion and no serious spot corrosion.
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